Heating apparatus.



Patented July 18, 1905.

PATENT OFFICE.

ROBERT STURGES, OF WVATERYLIET. NEIV YORK.

HEATING APPARATUS.

SPECIFICATION forming part of Letters Patent No. 794,957, dated July 18, 1905. Application filed June 20, 1904. Serial No. 213,207.

To all whom it may concern:

Be it known that I, ROBERT STURGES, a citizen of the United States, residing at Watervliet,county of Albany,and State of New York, have invented certain new and useful Im provements in Heating Apparatus, of which the following is a specification.

The invention relates to such improvements; and it consists of the novel construction and combination of parts hereinafter described and subsequently claimed.

Reference may be had to the accompanying drawings, and the reference characters marked thereon, which form a part of this specification. Similar characters refer to similar parts in both the figures therein.

Figure 1 of the drawings is a central, vertical, longitudinal section of my improved gas-stove. Fig. 2 is a central vertical crosssection of the same.

The principal object of the invention is to secure greater economy and efficiency in the use of fluid fuel for heating purposes and greater safety in the use of gas heating apparatus.

Other objects of the invention will appear in connection with the following description.

In the drawings I have shown a preferred form of apparatus embodying my invention, the same being a gas-stove, the body of which forms a tight box or inclosure, the walls of which serve merely as a radiating-surface, being wholly closed to prevent the flow of gas therethrough.

Referring to the drawings, 1 is the base of the stove mounted upon legs 2, upon which base is erected the radiator-box 3, which forms at its lower end a tight joint with the top of the base and at its upper end a tight joint with the cap or cover 4:, which cap or cover is provided with a vent-opening 5, normally closed by a valve or damper 6.

The base is provided with a central aperture 7 and within the radiator-chamber 8', with its lower ends resting upon the upper side of the base and inclosing the aperture 7. In the base is a hood, chimney, or funnel 9, forming the combustion-chamber, preferably having upwardly-convergent Walls and provided with an opening 10 at the apex thereof. Supported in horizontal position over and in close proximity to the open upper end of said funnel 9 is a spread er or deflector-plate 12, which serves to spread and deflect horizontally outwardly against the closed Walls of the radiator-chamber the currents of gas passing upwardly through said funnel. Mounted within the base isa gas-burner 13, the nipples 14 of which are located approximately at the bottom of the funnel 9 in such position that they can be freely supplied with air from the base-chamber 15, which is provided with a bottom 16, which may be perforated for the passage of air, if desired.

The valve 6 being normally closed, the radiator-chamber 8 is closed to the passage of gas, except through the comparatively small aperture 10 in the apex of the funnel 9, through which aperture the upward currents of heated gases from the burner, which are rendered convergent by the inclined walls of the funnel, are directed into the body of air or gas which forms the contents of the radiator-chamber. The heating efiiciency of the gas thus introduced into the radiator-chamber is utilized by radiation from the outer surface of the radiator-walls and not by circulation through openings in such walls, as has heretofore been the common practice. I have ascertained by actual test that the flames produced by the burner in an apparatus constructed as above described burn with greater steadiness and uniformity than where a free draft is afforded upwardly through the hood and out through openings in the walls of the inelosure. By locating the nipples of the burner at a sufficient distance below the apex of the funnel to afford free access thereto of air for combustion a substantially uniform flame is produced which is of high efficiency and is not afiected by back pressure from the radiator-chamber down through the hood.

The supply to the gas-burner is controlled by a valve 11.

To eliminate danger of explosion from the initial ignition of the burner, it is desirable to provide a vent for the radiator-chamber as well as a more free passage from the apex of the funnel into the radiator-chamber. This I accomplish by fixing the valve 6 and the spreader 12 upon a vertical rod 17, the lower end of which is loosely connected with an arm 18, oflset from a sleeve or collar 19, rotatively mounted on the burner-pipe, and provided with another arm 20, offset therefrom, which arm is connected by a link connection 21 with the door 22, formed in the side of the base, adapted to open outwardly to afford access to the gas-burner when it is desired to light the same. The several parts are so arranged that the opening of the door 22 rocks the sleeve 19, causing an upward movement of the arm 18, which lifts the rod 17, causing said rod to elevate the spreader 12 and the valve 6 to the positions indicated by dotted lines in Fig. 2, thus affording a vent through the top of the radiator-chamber as well as unimpeded access to said chamber from the funnel 9. When the door 22 is closed, the weight of the rod 17 and the connected spreader and valve serves to automatically restore the parts to their normal position, leaving the radiator closed.

If care be taken in igniting the burner, the means for giving vent to the radiator-chamber may be dispensed with; but I prefer to provide such means for the prevention of accidents, and this feature of my invention is not necessarily limited to having the vented chamber closed to the extent shown, as it may be employed in any construction of chamber 'the upper end of which is so closed that unignited gas might accumulate therein and subsequently explode when the burner is lighted.

The Valve 6 is guided in its opening and closingmovements by a pair of pins 23, which pass loosely through apertures in lugs 24 on the cap or cover 4.

The base 1, cap 4, valve 6, and spreader 12 may all be made of cast-iron, and the body 3 of the radiator-chamber, funnel 9, and bottom 16 of the base-chamber may be made of sheet-iron or other sheet metal. I do not wish, however, to be limited to any particular material for the construction of the various parts nor to any particular shape for the base,

body, or top of the stove, as the same may be made of any desired form. The deflectorplate 12 may be of any desired form or may be wholly omitted, if desired. The hood, funnel, or chimney may be of any desired shape, it only being necessary that it should be of such form as to permit free combustion of the gas from the burner and to direct the heated products of combustion into the closed radiator.

What I claim as new, and desire to secure by Letters Patent, is

1. In a heating apparatus, the combination with a closed radiator provided with a ventaperture; of a valve adapted to close said ventaperture; a base provided with a chamber and having a movable door adapted to close an opening into said chamber; a gas-burner located in said base-chamber accessible through said door-closed opening; means fordirecting gas from said burner into said radiator-chamber; and connections whereby the vent-controlling valve is adapted to be operated in unison with said door.

2. In a heating apparatus, the combination with a closed radiator provided with a ventaperture; of a valve adapted to close said ventaperture; a base provided with a chamber and having a movable door adapted to close an opening into said chamber; a gas-burner located in said base-chamber; a funnel mounted upon said base surrounding an opening in the base above said gas-burner and extending upwardly into the radiator-chamber and provided in its upper end with an opening into said chamber; a movable spreader supported above and adjacent to said opening in the funnel; and connections whereby said valve, spreader and door are operated in unison.

In testimony whereof I have hereunto set my hand this 14th day of June, 1904:-

ROBERT STURGES.

Witnesses:

E. M. OREILLY, S. O. BOOTH. 

